Sonographic measurements of fetal parts to predict pulmonary maturity among twins and singletons.
Chauhan SP, Magann EF, Morrison JC, Gunter AD, Whitworth NS, Devoe LD. Sonographic measurements of fetal parts to predict pulmonary maturity among twins and singletons. J Miss State Med Assoc. 2000 Mar; 41(3):516-20.